#include<iostream>
#include<string>
#include<vector>
#include<algorithm>
#include<numeric>
#include<cmath>
#include<utility>
#include<tuple>
#include<cstdint>
#include<cstdio>
#include<iomanip>
#include<map>
#include<queue>
#include<set>
#include<stack>
#include<deque>
#include<unordered_map>
#include<unordered_set>
#include<bitset>
#include<cctype>
#include<chrono>
#include<random>
#include<cassert>
#include<cstddef>
#include<iterator>
#include<string_view>
#include<type_traits>

#ifdef LOCAL
#  include "debug_print.hpp"
#  define debug(...) debug_print::multi_print(#__VA_ARGS__, __VA_ARGS__)
#else
#  define debug(...) (static_cast<void>(0))
#endif

using namespace std;
#define rep(i,n) for(int i=0; i<(n); i++)
#define rrep(i,n) for(int i=(n)-1; i>=0; i--)
#define FOR(i,a,b) for(int i=(a); i<(b); i++)
#define RFOR(i,a,b) for(int i=(b-1); i>=(a); i--)
#define ALL(v) v.begin(), v.end()
#define RALL(v) v.rbegin(), v.rend()
#define UNIQUE(v) v.erase( unique(v.begin(), v.end()), v.end() );
#define pb push_back
using ll = long long;
using D = double;
using LD = long double;
using P = pair<int, int>;
template<typename T> using PQ = priority_queue<T,vector<T>>;
template<typename T> using minPQ = priority_queue<T, vector<T>, greater<T>>;
template<class T>bool chmax(T &a, const T &b) { if (a<b) { a=b; return 1; } return 0; }
template<class T>bool chmin(T &a, const T &b) { if (b<a) { a=b; return 1; } return 0; }
void yesno(bool flag) {cout << (flag?"Yes":"No") << "\n";}

template<typename T, typename U>
ostream &operator<<(ostream &os, const pair<T, U> &p) {
    os << p.first << " " << p.second;
    return os;
}
template<typename T, typename U>
istream &operator>>(istream &is, pair<T, U> &p) {
    is >> p.first >> p.second;
    return is;
}

template<typename T>
ostream &operator<<(ostream &os, const vector<T> &v) {
    int s = (int)v.size();
    for (int i = 0; i < s; i++) os << (i ? " " : "") << v[i];
    return os;
}
template<typename T>
istream &operator>>(istream &is, vector<T> &v) {
    for (auto &x : v) is >> x;
    return is;
}
void in() {}
template<typename T, class... U>
void in(T &t, U &...u) {
    cin >> t;
    in(u...);
}
void out() { cout << "\n"; }
template<typename T, class... U, char sep = ' '>
void out(const T &t, const U &...u) {
    cout << t;
    if (sizeof...(u)) cout << sep;
    out(u...);
}
void outr() {}
template<typename T, class... U, char sep = ' '>
void outr(const T &t, const U &...u) {
    cout << t;
    outr(u...);
}

template<int mod> struct Fp {
    long long val;
    constexpr Fp(long long v = 0) noexcept : val(v % mod) {
        if (val < 0) val += mod;
    }
    constexpr int getmod() { return mod; }
    constexpr Fp operator - () const noexcept {
        return val ? mod - val : 0;
    }
    constexpr Fp operator + (const Fp& r) const noexcept { return Fp(*this) += r; }
    constexpr Fp operator - (const Fp& r) const noexcept { return Fp(*this) -= r; }
    constexpr Fp operator * (const Fp& r) const noexcept { return Fp(*this) *= r; }
    constexpr Fp operator / (const Fp& r) const noexcept { return Fp(*this) /= r; }
    constexpr Fp& operator += (const Fp& r) noexcept {
        val += r.val;
        if (val >= mod) val -= mod;
        return *this;
    }
    constexpr Fp& operator -= (const Fp& r) noexcept {
        val -= r.val;
        if (val < 0) val += mod;
        return *this;
    }
    constexpr Fp& operator *= (const Fp& r) noexcept {
        val = val * r.val % mod;
        return *this;
    }
    constexpr Fp& operator /= (const Fp& r) noexcept {
        long long a = r.val, b = mod, u = 1, v = 0;
        while (b) {
            long long t = a / b;
            a -= t * b; swap(a, b);
            u -= t * v; swap(u, v);
        }
        val = val * u % mod;
        if (val < 0) val += mod;
        return *this;
    }
    constexpr bool operator == (const Fp& r) const noexcept {
        return this->val == r.val;
    }
    constexpr bool operator != (const Fp& r) const noexcept {
        return this->val != r.val;
    }
    friend constexpr istream& operator >> (istream &is, const Fp<mod>& x) noexcept {
        int val; is >> val;
        x = Fp<mod>(val);
        return is;
    }
    friend constexpr ostream& operator << (ostream &os, const Fp<mod>& x) noexcept {
        return os << x.val;
    }
    friend constexpr Fp<mod> modpow(const Fp<mod> &a, long long n) noexcept {
        if (n == 0) return 1;
        auto t = modpow(a, n / 2);
        t = t * t;
        if (n & 1) t = t * a;
        return t;
    }
};

//const int mod = 1e9+7;
const int mod = 998244353;
using mint = Fp<mod>;

#include "atcoder/fenwicktree.hpp"

int main(){
    ios_base::sync_with_stdio(false);
    cin.tie(nullptr);
    int n; in(n);
    vector p(n,P{}); in(p);
    sort(ALL(p));
    vector<int> x(n),y(n);
    rep(i,n) x[i] = p[i].first, y[i] = p[i].second;
    map<int,vector<int>> mp;
    rep(i,n) mp[p[i].second].pb(i);
    mint sx = 0, sy = 0, sxx = 0, syy = 0, sxy = 0;
    rep(i,n){
        sx += x[i];
        sy += y[i];
        sxx += (mint)x[i]*x[i];
        syy += (mint)y[i]*y[i];
        sxy += (mint)x[i]*y[i];
    }
    mint ans = 0;

    atcoder::fenwick_tree<mint> f_cy(n);
    atcoder::fenwick_tree<mint> f_sx(n);
    atcoder::fenwick_tree<mint> f_sy(n);
    atcoder::fenwick_tree<mint> f_sxy(n);

    for(auto it = mp.rbegin(); it != mp.rend(); it++){
        auto &[yy,v] = *it;
        for(int i : v) {
            ans += f_cy.sum(i,n) * x[i]*y[i];
            ans -= f_sy.sum(i,n) * x[i];
            ans += f_sxy.sum(i,n);
            ans -= f_sx.sum(i,n) * y[i];
        }
        for(int i : v) {
            f_cy.add(i,1);
            f_sy.add(i,y[i]);
            f_sxy.add(i,(mint)x[i]*y[i]);
            f_sx.add(i,x[i]);
        }
    }

    atcoder::fenwick_tree<mint> f_cy2(n);
    atcoder::fenwick_tree<mint> f_sx2(n);
    atcoder::fenwick_tree<mint> f_sy2(n);
    atcoder::fenwick_tree<mint> f_sxy2(n);

    for(auto &[yy,v] : mp){
        for(int i : v) {
            ans -= f_cy2.sum(i,n) * x[i]*y[i];
            ans += f_sy2.sum(i,n) * x[i];
            ans -= f_sxy2.sum(i,n);
            ans += f_sx2.sum(i,n) * y[i];
        }
        for(int i : v) {
            f_cy2.add(i,1);
            f_sy2.add(i,y[i]);
            f_sxy2.add(i,(mint)x[i]*y[i]);
            f_sx2.add(i,x[i]);
        }
    }
    
    ans *= 2;
    ans += sxx*n + syy*n -sx*sx - sy*sy;
    out(ans);
}